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Device for releasing medication for alimentary tract at fixed point

A technology of releasing device and digestive tract, which is applied in the directions of drug delivery, drug devices, and pharmaceutical formulations, etc., can solve the problems such as difficulty in loading drugs into the liquid medicine storage bin, inability to push the movement of the medicinal liquid storage bin, and inability to act as an array of sharp objects. , to achieve the effect of simple structure, easy assembly and manufacture, and high release reliability

Inactive Publication Date: 2007-03-14
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device has the following disadvantages. First, the friction between the expanded liquid medicine storage chamber and the inner wall of the shell is relatively large, and the driving force of the spring may not be able to push the liquid medicine storage chamber to move, and cannot interact with the array of sharp objects, resulting in release failure; secondly , it is difficult to load the medicine into the liquid medicine storage chamber, and the liquid medicine storage chamber after filling the medicine is easily damaged during the assembly process

Method used

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  • Device for releasing medication for alimentary tract at fixed point
  • Device for releasing medication for alimentary tract at fixed point
  • Device for releasing medication for alimentary tract at fixed point

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0018] A fixed-point drug release device for the digestive tract, including an external remote control mechanism [1] and an electronic capsule [2] that can be swallowed. The electronic capsule [2] includes a shell [3], a battery [4], a remote control module [5], a spring [6], the piston [7], the drug release channel mechanism [8], the positioning marker source [9], and the cavity between the piston [7] and the drug release channel mechanism [8] constitutes the drug storage bin [12].

[0019] The drug release channel mechanism [8] includes a circular through hole [14] and a circular elastic sealing plug [15]. The diameter of the circular through hole [14] is between 3 mm and 10 mm, and the length is between 1 mm and 5 mm; The diameter of the shaped elastic sealing plug [15] is between 3mm and 10mm, and the length is between 1mm and 5mm; The frictional force between the hole [14] and the circular elastic sealing plug [15] is between 0.5 Newton and 10 Newton. In order to increas...

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PUM

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Abstract

A localizable medicine releasing device for digestive tract is composed of an external remote controller, and an electronic capsule which consists of shell, battery, remotelly controlled module with a miniature heating element, stressed spring, piston fixed by a polymer thread, medicine chamber, medicine releasing channel, and locating marker source. When said remotely controlled module receives a control signal its miniature heating element can fuse off the polymer thread of piston and under the action of stressed spring the piston is moving to open the medicing releasing channel for releasing medicine.

Description

Technical field: [0001] The present invention relates to a fixed-point release device for digestive tract medicine, in particular to a pill-type swallowable fixed-point release device for digestive tract medicine, which is used to release substances in the digestive tract of animals or human bodies, such as medicine, food, markers Wait. Background technique: [0002] In U.S. Patent No. 4,425,117, a device for releasing substances at designated positions in the digestive tract is proposed. There is a needle at the end of the moving mechanism; the second small chamber is a medicine storage bin with small holes around it, and the medicine is packaged in a small balloon and put into the medicine storage bin; there is a fixed baffle in the middle of the device to separate the two small chambers . When the device reaches the designated position of the digestive tract, an electromagnetic wave signal is sent from the outside, and the coil and oscillation circuit in the housing of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M31/00A61D7/00A61J3/07
CPCA61M31/00
Inventor 郑小林皮喜田彭承琳侯文生崔建国樊华吴旭东
Owner CHONGQING UNIV
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